x=int(input())
now=400
for i in range(100):
    if now<=x<=now+199:
        print(8-i)
        break
    else:
        now+=200 x=int(input()) x int(input()) int input() input now=400 now 400 for i in range(100):
    if now<=x<=now+199:
        print(8-i)
        break
    else:
        now+=200 i range(100) range 100 if now<=x<=now+199:
        print(8-i)
        break
    else:
        now+=200 now<=x<=now+199 now<=x now x now+199 now 199 print(8-i) print 8-i 8 i break now+=200 now 200 now=400 400 now x=int(input()) int(input()) x now+=200 200 now
x=int(input())
now=400
for i in range(100):
    if now<=x<=now+199:
        print(8-i)
        break
    else:
        now+=200
